Math, asked by babli8209, 5 months ago

class nine math help me to everyone

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Answered by viky235

0

Step-by-step explanation:

copy answer from photo

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Answered by tyrbylent

1

Answer:

m∠COB = 80°

Step-by-step explanation:

∠AOD and ∠COD are supplementary angles ⇒ m∠AOD + m∠COD = 180° 4x + 5x = 180°

9x = 180° ⇒ x = 20°

m∠AOD = 4(20) = 80°

∠AOD ≅ ∠COB (Verticals angles) ⇒ m∠AOD = m∠COB = 80°

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